Honeywell Pressure Sensor Products RDD100 Remote Digital Display User Manual
RDD100 User Guide Table of Contents 1 Introduction 1.1 1.2 2 Equipment Set Up 2.1 2.2 2.3 2.4 2.5 2.6 2.7 3 Operating Temp Range Storage Temp Range Relative Humidity Dimensions 6.1 6.2 6.3 2 Voltage Current Power Connection Operating Environment 5.1 5.2 5.3 6 Start Up Messages Error Indications 3.2.1 Transducer Not Connected 3.2.2 Incorrect Baud Rate 3.2.3 Not Set Up To Continuously Transmit 3.2.4 Wrong Polarity Of DC Power 3.2.5 Transducer Disconnected While Transmitting 3.2.
RDD100 User Guide 1 INTRODUCTION 1.1 Product Overview The Honeywell Remote Digital Display, RDD100, produces a digital display of measured pressures and is designed for use with RS-232 versions of Honeywell HPA, HPB, PPT, PPTE, and PPTR pressure transducers. The 6-digit display features 0.56 inch-tall LED characters that are readable in bright sunlight. The RDD100 is a digital-input instrument, accepting a continuous stream of digital data transmitted in RS-232 format from the transducer.
RDD100 User Guide The Demo program or PC terminal emulator port parameters should be set up as follows: Baud Rate Start Bits Data Bits Stop Bits Parity Local Echo 9600 1 8 1 None On Also, configure the program to attach a line feed to the carriage return. This completes the set up of the PC terminal emulator. Next, the transducer must be configured to match the above terminal emulator settings.
RDD100 User Guide Resp Type *99WE (Command Echo) *99du= {selection-see DU list below} (A list of available pressure display units can also be found in the associated transducer User’s Manual.) Resp *99DU= {selected display units} (Command Echo) Display Units List Display Unit PSI Multiplier Units Description ATM BAR CMWC FTWC INHG INWC KGCM KPA MBAR MMHG MPA MWC PSI USER LCOM PFS 0.068046 0.068948 70.304 2.3065 2.0360 27.679 0.070307 6.8948 68.948 51.714 0.0068948 0.70304 1.0000 0.0010000-999.
RDD100 User Guide 3 OPERATION 3.1 Start Up Messages When the RDD100 is powered up, it goes through a test of its display segments and its error LED. The error LED is located beneath the least significant digit of the display. All segments should light for a brief period and then the display transitions to “rdd100” followed by the message “rEAdY”. If a transducer is properly set up and connected to the RDD100, pressure readings will appear on the display. 3.2 Error Indications 3.2.
RDD100 User Guide 5 OPERATING ENVIRONMENT 5.1 5.2 5.3 Operating Temp Range Storage Temp Range Relative Humidity 6 DIMENSIONS 6.1 6.2 6.3 Overall Panel Cutout Dimensions Depth Behind Panel -20ºC to +60ºC -25ºC to +85ºC 0% to 90%, non-condensing 3.8 in. W x 2.0in.H 3.58 in. W x 1.77in.H ….4.5 inches (not including connectors and cables) RDD100 Connections (2) 6 Personal Computer S e C r O i M a l (1) ft. transducer cable 1/A 2/B 4/D 5/E 9-pin cable, 6 or 10 ft.
